On the Birds of Annobon Island. 227 



Later on another specimen was brought to me mangled 

 almost beyond recognition. 



On the 22nd of December of the same year, while driving 

 past Salamis plantation, a Bustard whicii I took to be of 

 this species got up close to the road. 



Mr. W. L. Sclater helped me to identify my specimen. 



XII. — Report on the Birds collected by the late Mr. Boyd 

 Alexander {Bifie Brigade^ during his last Expedition to 

 Africa. — Part III.* The Birds' of Annobon Island. By 

 David A. Bannerman, B.x\., M.B.O.U., F.ll.G.S. 



The third report on the Alexander collection, which is here 

 issued, is an account of the birds of Annobon, the last island 

 which Boyd Alexander visited before commencing his 

 journey on the mainland. Annobon is much smaller than 

 either St. Thomas or Prince's Island, and has an area of 

 only six and a half square miles. It is, in fact, little more 

 than a volcanic rock rising abruptly from the water. It lies 

 about 60 miles south of St. Thomas and about 100 miles 

 west of Cape Lopez in French Congo and belongs to Spain. 

 Its avifauna is consequently very limited, but, notvvith- 

 standing its small extent, it is the home of at least four 

 species or subspecies which are found nowhere else in the 

 world. This is particularly striking, as there are only six 

 resident land -birds ou the island. 



The four forms restricted to Annobon are : — 



1 . Zosterops griseovirescens Bocage. 



2. Terpsiphone newtoni Bocage. 



3. Scops capensis fece Salvadori. 



4. Haplopelia hypoleuca Salvadori. 



In this paper I have adhered to the arrangement followed 

 in my account of the Birds of Prince's Island {' Ibis,^ 1914, 

 pp. 596-631) and the Birds of St. Thomas ('Ibis,' 1915, 



* For Part I. see ' Ibis,' 1914, pp. 596-63] & Part II. ' Ibis,' 1915, 

 pp. 89-121. 



